I have never worked with my bench up against the wall, because I like to work from all 4 sides of my bench. I do like my machines pushed up against the wall and a large open space in the middle of the shop to facilitate easier movement. I have a Minimax combination machine so by necessity my tablesaw and jointer/planer are bundled together but I would actually prefer they not be (like a Felder machine that breaks apart). I would never put my tablesaw central in my shop, always at one end with a clear entry and egress for the sliding table, space permitting. Putting a tablesaw in the middle always struck me as one thing I’d always have to walk around and/or fight the temptation to stack stuff on it.
Temperature and Moisture Control. If your workshop is to be located in a portion of your house that is already comfortably warm, this will not be an issue. But if you’re converting a barn or shed or an unheated space, especially if you live in a climate where winter temperatures make for cold hands, you’ll need to devise a heating strategy. In some climates, air conditioning is a virtual necessity in hot weather.
I recently taught a three day "Introduction to Hand Tool Woodworking" class here at my traditional woodworking school in Virginia, and want to share the experience to give you an idea of what the class is like. The first thing students do in this class is learn about & try out workbenches and all the different hand tools in the shop. Then they jump in and use a folding rule to measure out a length
Plan to invest in a set of bench chisels, both standard and low-angle block planes, a No. 4 or 4-1⁄2 smoothing plane, and a No. 6 jack or No. 7 jointer. Between them, these planes will true edges, flatten glue-ups that are wider than your thickness planer, and tame tricky grain that would tear out with a mechanized planer. They also do fine trimming better than any other tools.